I really think they'd work better as a detachment-you could tie the ability to take one to a minimum size of the dwarf unit, which would discourage 10 man units with swivel guns as the cheesy core option. Say, a unit of 20 Chaos Dwarves can take a Swivel Cannon for 50 points or something like that.

Agreed 100% with all comments. These are stupid and look totally forced just because models exist for them. Also, they contribute to the gunline mentality, which the game doesn't need. If they were attachments, I probably still wouldn't field these guys, but as it is, I'd never touch them vs. the other potent Special options. You need to make them cheaper or more survivable, or both.

- Larry

"Just being born means you've lost to Larro. Or haven't you gotten the memo yet?" - Nidal

"Larry was right. I know he never gets tired of hearing that." - Canterman

1 Art die doesn't look good on paper, but what if somebody showed up with 2 or 3 full sized units of these. You may "only" hit on 5's at ranges over 24"... but you can hit at ranges over 24". It's decent long ranged fire power, and even better medium ranged. Sure 1 or 2 swivels won't stick out in a game, but I'll bet you remember when I throw 6 artillery dice down on turn 1.